/**
 * @author ChaP
 * @date 2019/04/22
 * @describe:
 */
package CodingTest.AC20190421;

import java.util.Stack;

public class removeKdigits {
    public String removeKdigits(String num,int k){
        Stack<Character> s = new Stack<>();
       for(int i = 0;i<num.length();i++){
           if(s.isEmpty()){

           }
       }return num;
    }
}
